A gentle, water-soluble extract from bottle gourd that helps hydrate and calm the skin, though research is still emerging.
Irritation
low
Source
natural
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
A gentle, water-soluble extract from bottle gourd that helps hydrate and calm the skin, though research is still emerging.
Irritation
low
Source
natural
A smaller, salt-linked version of hyaluronic acid that may hydrate deeper layers of skin with lower irritation potential.
Irritation
low
Source
semi-synthetic
A gentle, biotech-derived yeast extract that helps hydrate and soothe the skin, making it a good option for sensitive or dry skin types.
Irritation
low
Source
biotech
A gentle, plant-derived humectant that helps hydrate and soothe the skin while supporting a healthy microbiome.
Irritation
low
Source
natural
A gentle, plant-derived humectant that helps attract moisture to the skin without common irritation or clogging concerns.
Irritation
low
Source
natural
A gentle, plant-derived humectant that helps attract moisture to the skin, with emerging research suggesting antioxidant and soothing benefits.
Irritation
low
Source
natural
Hydrolyzed caviar extract is a luxury humectant that provides surface moisture and amino acids, but its anti-aging benefits are not strongly supported by independent research.
Irritation
low
Source
natural
A gentle, plant-derived humectant that pulls moisture into the skin and helps maintain a healthy barrier.
Irritation
low
Source
natural
A gentle, hydrating seaweed extract that helps skin retain moisture and may calm irritation, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based humectant that helps skin hold onto moisture and may support a smoother appearance.
Irritation
low
Source
natural
A gentle, plant-based humectant that helps hydrate and plump the skin, similar to hyaluronic acid but from a botanical source.
Irritation
low
Source
natural
Hydrolyzed collagen is a well-tolerated humectant that draws moisture to the skin and forms a temporary film for a smoother feel, but it cannot replace lost collagen deep in the skin.
Irritation
low
Source
natural
A gentle, plant-based protein that helps reinforce the skin barrier and improve moisture retention without irritation.
Irritation
low
Source
natural
A gentle, water-loving derivative of cucumber that helps hydrate and soothe the skin, ideal for sensitive and dry types.
Irritation
low
Source
natural
A gentle, antioxidant-rich humectant from cupuaçu fruit that helps hydrate and protect the skin without clogging pores.
Irritation
low
Source
natural
A novel marine-derived peptide ingredient that may support skin hydration and firmness, but research is very limited.
Irritation
low
Source
natural
A natural, protein-packed ingredient that helps hydrate and support skin barrier function, with low irritation potential.
Irritation
low
Source
natural
Hydrolyzed Elastin helps temporarily plump and smooth skin by depositing moisture and forming a light film, but it cannot rebuild your skin's own elastin.
Irritation
low
Source
natural
A gentle plant protein that helps hydrate and temporarily smooth the skin's surface, though research on its specific benefits is still limited.
Irritation
low
Source
natural
A gentle, algae-derived ingredient that helps hydrate and support the skin barrier, with some antioxidant potential.
Irritation
low
Source
natural
A gentle, plant-derived humectant that helps hydrate and soothe the skin, with some antioxidant benefits.
Irritation
low
Source
natural
Hydrolyzed fibroin is a gentle silk protein that helps attract moisture to skin and hair, leaving them feeling soft and smooth without heavy residue.
Irritation
low
Source
natural
A moisturizing protein from fish cartilage that helps hydrate and support skin barrier function, but evidence is limited and it may not suit vegans or those with fish allergies.
Irritation
low
Source
natural
A gentle, protein-rich ingredient from fish egg membranes that helps hydrate and condition skin, but research is still limited.
Irritation
low
Source
natural
A gentle, marine-sourced humectant that may help hydrate and temporarily smooth the skin, but research is limited and it's not a standout compared to well-studied alternatives.
Irritation
low
Source
natural
A gentle, seaweed-derived humectant that attracts moisture to the skin and may help calm irritation.
Irritation
low
Source
natural
A mild, sugar-modified stevia derivative that helps hydrate skin without the sweetness or stickiness of raw stevia.
Irritation
low
Source
semi-synthetic
A powerful humectant that draws moisture into the skin and helps maintain its structural support, making it a great choice for dry or aging skin.
Irritation
low
Source
natural
A gentle, hydrating algae extract that helps skin retain moisture and may calm irritation.
Irritation
low
Source
natural
A gentle, hydrating algae extract that helps skin retain moisture and may offer mild antioxidant benefits.
Irritation
low
Source
natural
A gentle, hydrating seaweed extract that helps skin retain moisture and feel soothed, though research is still emerging.
Irritation
low
Source
natural
A gentle, water-soluble hemp derivative that hydrates and soothes skin without the oiliness of hemp seed oil.
Irritation
low
Source
natural
Hydrolyzed honey is a gentle, water-soluble humectant that helps attract moisture to the skin and may offer mild soothing benefits, making it a good option for dry or sensitive skin.
Irritation
low
Source
natural
A novel, protein-rich ingredient that may help hydrate and soothe skin, but human research is very limited.
Irritation
low
Source
natural
A protein-rich extract that may help hydrate and support skin repair, but human studies are limited and ethical sourcing is a concern.
Irritation
low
Source
natural
Humectant
Fluorescent Brightener 264, Hydrolyzed Hyaluronate
Hydrolyzed hyaluronate provides light hydration, but the fluorescent brightener is an optical additive with no proven skincare benefit and may cause skin sensitivity in some people.
Irritation
low
Source
semi-synthetic
A gentle, hydrating seaweed extract that supports moisture retention and soothes the skin without clogging pores.
Irritation
low
Source
natural
A marine extract that may help hydrate and calm the skin, but research is still early and sustainability concerns exist.
Irritation
low
Source
natural
A gentle, water-soluble jojoba derivative that hydrates and conditions skin without the oiliness of traditional jojoba oil.
Irritation
low
Source
natural
A gentle, plant-derived humectant that hydrates and leaves a smooth, non-greasy film on skin—great for sensitive or dry types.
Irritation
low
Source
natural
A gentle, plant-derived humectant that helps hydrate and soothe the skin, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-derived humectant that pulls moisture into the skin and helps calm irritation.
Irritation
low
Source
natural
Hydrolyzed linseed seed is a gentle, plant-derived humectant that helps attract moisture to the skin and may calm irritation.
Irritation
low
Source
natural
A gentle, plant-derived protein that helps hydrate and smooth the skin, though research on its specific benefits is still limited.
Irritation
low
Source
natural
A gentle, plant-based humectant that helps skin hold onto moisture and may calm irritation.
Irritation
low
Source
natural
A gentle, naturally-derived humectant that helps hydrate and soothe the skin, suitable for most skin types.
Irritation
low
Source
natural
A gentle, water-soluble mango derivative that hydrates and provides antioxidant support, suitable for most skin types.
Irritation
low
Source
natural
A gentle, plant-derived humectant that helps hydrate and condition the skin, but research on its specific benefits is still limited.
Irritation
low
Source
natural
Hydrolyzed millet is a gentle, plant-based humectant that helps hydrate and soften skin without irritation.
Irritation
low
Source
natural
A mild, natural humectant that helps attract moisture to the skin and may offer antioxidant benefits, but research is still limited.
Irritation
low
Source
natural
A gentle, protein-based humectant from fish milt that helps hydrate and soothe skin, but research is still early and sourcing may raise ethical or allergy concerns.
Irritation
low
Source
natural
A gentle, plant-derived extract that hydrates and soothes skin, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based humectant that helps skin retain moisture and feel smooth, though research is still emerging.
Irritation
low
Source
natural
Hydrolyzed oats are a gentle, multi-tasking ingredient that soothes, moisturizes, and protects sensitive or irritated skin.
Irritation
low
Source
natural
A gentle, water-soluble olive derivative that hydrates and helps protect skin from environmental stress without clogging pores.
Irritation
low
Source
natural
Hydrolyzed Oryzanol is a gentle, water-soluble rice bran derivative that hydrates and protects skin without clogging pores.
Irritation
low
Source
natural
A gentle, hydrating marine extract that may help soothe and condition the skin, though research is still emerging.
Irritation
low
Source
natural
A gentle, hydrating marine ingredient that may support skin barrier function, but research is still limited.
Irritation
low
Source
natural
A gentle, plant-based protein that helps hydrate and soothe the skin, making it a great option for sensitive or dry skin types.
Irritation
low
Source
natural
A gentle, multi-tasking ingredient that helps hair feel smoother and skin look plumper by depositing a lightweight, moisturizing film.
Irritation
low
Source
semi-synthetic